There are no Boardwalk view rooms actually close to the elevators since you need to walk at least down the first leg of hallway before reaching the beginning of the boardwalk view rooms. The 2BRs that are closest to the elevator are on the second floor, look directly at the basketball carnival game on the boardwalk, and have the large wooden balconies from which you cannot see over the wall when sitting down. Those are OK rooms but definitely not the more desirable boardwalk views. Thus, for boardwalk view, I recommend against ever asking for close to elevator when getting a 2BR.
Though mentioned above is asking for fifth floor, we usually give ourselves a higher probability of getting the request by simply requesting high floor, and thus possibly getting the fourth or fifth floor.